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Pool Volume Calculator
If you have ever struggled trying to keep your pool chemically balanced, you know the importance of the pool volume. Estimating the volume of your pool is one of the first steps of being able to determine the accurate amount of corrective chemicals needed for a given situation. Please fill in all areas below, entering numbers only for dimension entries.
Calculating Pool Capacity
Oval Pool
Long Diameter x Short Diameter x Avg. Depth x 5.9 = Gallons
Round Pool
Diameter x Diameter x Average Depth x 5.9 = Gallons
Pool Volume
0000.00
(US Gallons)
Enter pool Dimensions
Please note: Pool calculations below have been rounded off to be used as a quick guide for easy pool maintenance.
For exact calculations please use the calculator above.
Pool Capacity Cheatsheet
| Poolsize Round | Capacity (Gallons) | Poolsize Oval | Capacity (Gallons) |
| 12 Round | 3,000 | 8×12,8×14 | 3,000 |
| 15 Round | 5,000 | 10×15, 10×16 | 3,500 |
| 18 Round | 7,500 | 10×21, 12×18 | 5,000 |
| 21 Round | 10,000 | 12×20, 12×21 | 6,500 |
| 24 Round | 13,000 | 12×24, 14×20 | 7,500 |
| 27 Round | 17,000 | 15×24 | 10,000 |
| 30 Round | 21,000 | 15×30 | 12,000 |
| 33 Round | 25,000 | 18×33 | 16,000 |
| 18×40 | 19,000 |